From and Courtesy of Diario de Yucatan, as translated:
Cancun .- Municipal Civil Protection authorities confirmed this afternoon that a female shark attacked and badly injured a Canadian tourist who swam in front of the hotel Park Royal, at kilometer 11.5 of the Avenida Kukulkan Cancun.
The head of the Civil Protection Office, Mario Castro reported that Nicole Ruth Wood, was taken to the hospital Hospiten, seriously injured, where her condition is reported as serious with a detached arm and left thigh.
The incident was reported around noon and rescue teams immediately mobilized, only a private ambulance service could enter the hosting center to pick up the woman, apparently 38 years of age and transported to the hospital in Cancun where she is already receiving attention.
Castro Wood said according to initial reports, the attack apparently occurred because the female shark approached the coast to give birth, and the woman, who was with a large group of swimmers, came too close to it, so they (the shark) reacted that way.
The municipal official said that at this moment is the shark mating season, so it recommended that swimmers pay attention to such situations.
(note: this is an early account, I'd expect more information and possibly changes in details as the story evolves)
yucatan.com.mx/20110131/…medio-ambiente.htm
Edited: 9:54 pm, January 31, 2011